This chemical is called Cyclooctene, 5,6-dibromo-, and its CAS registry number is 24165-06-8. With the molecular formula of C₈H₁₂Br₂, its molecular weight is 267.99.

Other characteristics of the Cyclooctene, 5,6-dibromo- can be summarised as followings: (1)ACD/LogP: 4.04; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 0; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Index of Refraction: 1.547; (7)Molar Refractivity: 52.06 cm³; (8)Molar Volume: 163.9 cm³; (9)Polarizability: 20.64×10^-24cm³; (10)Surface Tension: 39.1 dyne/cm; (11)Density: 1.634 g/cm³; (12)Flash Point: 124.6 °C; (13)Enthalpy of Vaporization: 47.88 kJ/mol; (14)Boiling Point: 261.2 °C at 760 mmHg; (15)Vapour Pressure: 0.019 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
1.SMILES: BrC1CC/C=C\CCC1
2.InChI: InChI=1/C8H12Br2/c9-7-5-3-1-2-4-6-8(7)10/h1-2,7-8H,3-6H2/b2-1-
3.InChIKey: NNFZIBYWUOSNJE-UPHRSURJBI